<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
        var a;
        function send() {
            a="绿叶学习网";
            var b ="JavaScript\"入门\"教程";
            alert(a+b);

        }
        send();
    </script>
</head>
<body>

</body>
</html>
